8-bit 80C51 MCU, 40MHz, 64KB Flash, SPI, UART, 5V, PLCC
8-bit 80C51 MCU, 40MHz, 64KB Flash, 1KB RAM, SPI, UART, 32 I/O, PLCC
80C51 MCU 16KB FLASH 40MHz 8b SPI UART LCC
8-bit 40MHz 32KB FLASH MCU, LCC, SPI, UART, 32 I/O
80C51 MCU 40MHz 64KB Flash 1KB RAM SPI UART 32 I/O PLCC
